//
//  NSString+Extension.h
//  Test
//
//  Created by Ares on 14-1-6.
//  Copyright (c) 2014年 Ares. All rights reserved.
//

#import <Foundation/Foundation.h>


#define StringIsNullOrEmpty(str) (str==nil||[str isEqualToString:@""])

@interface NSString (Extension)
+(CGRect)heightForString:(NSString*)str Size:(CGSize)size Font:(UIFont*)font Lines:(int)lines;
@end
